271.08% is the change from 166 to 616
Calculation steps:
[( 616 - 166 ) ÷ 166] x 100 = 271.08%
Formula
Percentage change = [(616 - 166) / 166] x 100
Subtract the new number by the original number
616 - 166 = 450
450 ÷ 166 = 2.710843373493976
2.710843373493976 x 100 = 271.08%